DYN

Dyne Therapeutics, Inc.

Pharmaceutical PreparationsNasdaqLarge accelerated filer

Total Trades

132

Buys

Sells

105

Largest Trade

N/A

Insiders

Institutional Funds

173

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Scalzo Richard William	SVP	SELL	$50K–$100K	3K	$30.74	Jun 11, 2024
Beskrovnaya Oxana	Chief Scientific O…	SELL	$1M+	30K	$32.96	May 23, 2024
Beskrovnaya Oxana	Chief Scientific O…	EXERCISE	$15K–$50K	30K	$1.03	May 23, 2024
Brumm Joshua T	CEO & President	SELL	$1M+	100K	$28.96	Mar 2, 2024
Brumm Joshua T	CEO & President	EXERCISE	$500K+	100K	$5.54	Mar 2, 2024
McNeill Jonathan	Chief Business Off…	SELL	$500K+	29K	$28.46	Mar 2, 2024
McNeill Jonathan	Chief Business Off…	EXERCISE	$15K–$50K	29K	$0.73	Mar 2, 2024
Scalzo Richard William	SVP	SELL	$100K–$500K	13K	$28.05	Mar 2, 2024
Scalzo Richard William	SVP	EXERCISE	$1K–$15K	13K	$1.03	Mar 2, 2024
Rhodes Jason P	Director	SELL	$1M+	808K	$24.30	Feb 29, 2024
Atlas Venture Fund XI, L.P.	10% Owner	SELL	$1M+	808K	$24.30	Feb 29, 2024
Farwell Wildon	Chief Medical Offi…	SELL	$1K–$15K	407	$25.00	Feb 28, 2024
Rhodes Jason P	Director	SELL	$1M+	501K	$22.64	Feb 23, 2024
Atlas Venture Fund XI, L.P.	10% Owner	SELL	$1M+	501K	$22.64	Feb 23, 2024
Rhodes Jason P	Director	SELL	$1M+	510K	$23.26	Feb 20, 2024
Atlas Venture Fund XI, L.P.	10% Owner	SELL	$1M+	510K	$23.26	Feb 20, 2024
Farwell Wildon	Chief Medical Offi…	SELL	$100K–$500K	5K	$25.07	Feb 14, 2024
Farwell Wildon	Chief Medical Offi…	SELL	$1K–$15K	100	$25.00	Jan 27, 2024
McNeill Jonathan	Chief Business Off…	SELL	$100K–$500K	20K	$24.53	Jan 27, 2024
McNeill Jonathan	Chief Business Off…	EXERCISE	$1K–$15K	20K	$0.73	Jan 27, 2024
Scalzo Richard William	SVP	EXERCISE	$1K–$15K	13K	$1.03	Jan 27, 2024
Scalzo Richard William	SVP	SELL	$100K–$500K	13K	$24.34	Jan 27, 2024
Brumm Joshua T	CEO & President	SELL	$1M+	270K	$18.66	Jan 5, 2024
Brumm Joshua T	CEO & President	EXERCISE	$1M+	270K	$4.37	Jan 5, 2024
Beskrovnaya Oxana	Chief Scientific O…	EXERCISE	$50K–$100K	68K	$1.03	Jan 5, 2024
Beskrovnaya Oxana	Chief Scientific O…	SELL	$1M+	88K	$18.57	Jan 5, 2024
McNeill Jonathan	Chief Business Off…	SELL	$500K+	32K	$16.59	Jan 5, 2024
McNeill Jonathan	Chief Business Off…	EXERCISE	$1K–$15K	20K	$0.73	Jan 5, 2024
Scalzo Richard William	SVP	EXERCISE	$1K–$15K	13K	$1.03	Jan 5, 2024
Scalzo Richard William	SVP	SELL	$100K–$500K	13K	$18.81	Jan 5, 2024
HIGH SUSANNA GATTI	COO	SELL	$50K–$100K	10K	$7.40	Nov 2, 2023
Scalzo Richard William	See Remarks	SELL	$1K–$15K	1K	$9.41	Sep 20, 2023
McNeill Jonathan	Chief Business Off…	SELL	$1K–$15K	1K	$9.41	Sep 20, 2023
HIGH SUSANNA GATTI	COO	SELL	$15K–$50K	3K	$9.41	Sep 20, 2023
Brumm Joshua T	See Remarks	SELL	$100K–$500K	12K	$9.41	Sep 20, 2023
Beskrovnaya Oxana	Chief Scientific O…	SELL	$1K–$15K	1K	$9.41	Sep 20, 2023
Farwell Wildon	Chief Medical Offi…	SELL	$15K–$50K	2K	$10.41	Sep 13, 2023
Scalzo Richard William	See Remarks	SELL	$1K–$15K	1K	$10.41	Sep 13, 2023
McNeill Jonathan	Chief Business Off…	SELL	$1K–$15K	1K	$10.41	Sep 13, 2023
HIGH SUSANNA GATTI	COO	SELL	$15K–$50K	2K	$10.41	Sep 13, 2023
Brumm Joshua T	See Remarks	SELL	$50K–$100K	8K	$10.41	Sep 13, 2023
Beskrovnaya Oxana	Chief Scientific O…	SELL	$15K–$50K	1K	$10.41	Sep 13, 2023
Scalzo Richard William	See Remarks	SELL	$500K+	51K	$12.71	Jun 15, 2023
Scalzo Richard William	See Remarks	EXERCISE	$15K–$50K	40K	$1.03	Jun 15, 2023
McNeill Jonathan	See Remarks	SELL	$15K–$50K	2K	$12.68	Jun 14, 2023
HIGH SUSANNA GATTI	COO	SELL	$15K–$50K	2K	$12.43	Jun 14, 2023
Farwell Wildon	Chief Medical Offi…	SELL	$15K–$50K	2K	$12.43	Jun 14, 2023
Beskrovnaya Oxana	Chief Scientific O…	SELL	$15K–$50K	1K	$12.43	Jun 14, 2023
Brumm Joshua T	See Remarks	SELL	$1M+	325K	$12.90	Jun 13, 2023
Brumm Joshua T	See Remarks	EXERCISE	$100K–$500K	278K	$1.03	Jun 13, 2023

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Institutional Ownership

13F filings as of Dec 31, 2025 · 173 funds holding

Fund	Shares	Value	Type
Atlas Venture Life Science Advisors, LLC	9.1M	$1M+	SH
STATE STREET CORP	6.7M	$1M+	SH
Siren, L.L.C.	3.5M	$1M+	SH
PERCEPTIVE ADVISORS LLC	3.5M	$1M+	SH
Frazier Life Sciences Management, L.P.	3.2M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	2.8M	$1M+	SH
Deep Track Capital, LP	2.6M	$1M+	SH
Vivo Capital, LLC	2.6M	$1M+	SH
Sofinnova Investments, Inc.	2.3M	$1M+	SH
ORBIMED ADVISORS LLC	2.2M	$1M+	SH
VR Adviser, LLC	2.2M	$1M+	SH
BRAIDWELL LP	1.5M	$1M+	SH
Palo Alto Investors LP	1.5M	$1M+	SH
MPM BioImpact LLC	1.4M	$1M+	SH
Logos Global Management LP	1.3M	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	1.2M	$1M+	SH
Aberdeen Group plc	1.1M	$1M+	SH
Candriam S.C.A.	1.1M	$1M+	SH
ArrowMark Colorado Holdings LLC	701K	$1M+	SH
EVENTIDE ASSET MANAGEMENT, LLC	680K	$1M+	SH